x:=4*n*(1+I)
   y:=4*n*(1-I)

   fonk1:=Sum[ComplexExpand[((y^x+x^y)/(y^y+x^x))] , {n,1,t}] + 1 
   fonk2:=Apart[Expand[(Exp[2*(t+1)*Pi]-1) / ( Exp[2*Pi]-1 ) ]]

   ask:=TrueQ[fonk1==fonk2]
   Table[ask , {t,1,50}]

   {True, True, True, True, True, True, True, True, True, True, True, 
 
    True, True, True, True, True, True, True, True, True, True, True, 
 
    True, True, True, True, True, True, True, True, True, True, True, 
 
    True, True, True, True, True, True, True, True, True, True, True, 
 
    True, True, True, True, True, True}

    Source: geocities.com/timeparadox